Infraphylum Tetrapoda Goodrich, 1930 see Clade Tetrapoda Hatschek & Cori 1896 [Laurin 2020]
   Superclass Amniota Haeckel, 1866 see Clade Amniota Haeckel 1866 [Laurin & Reisz 2020]
     Paraclass Reptilia Linnaeus, 1758 [paraphyletic] - reptiles
       Parasubclass Diapsida Osborn, 1903 [paraphyletic] - diapsids see Clade Diapsida Osborn 1903 [Gauthier & de Queiroz 2020]
         Parainfraclass Archosauria Cope, 1869 [paraphyletic] see Clade Archosauria Cope 1869 [Gauthier & Padian 2020]
           Parasuperorder Thecodontia Owen, 1859 [paraphyletic]
             Order †Aetosauria Nicholson & Lydekker, 1889 [monotypic]
               Family †Stagonolepididae Lydekker, 1887 - aetosaurs
                 01 Genus †Acompsosaurus Mehl, 1915, nom. dub.
                 02 Genus †Aetosauroides Casamiquela, 1960
                 03 Genus †Aetosaurus Fraas, 1877
                 04 Genus †Argentinosuchus Casamiquela, 1960, nom. dub.
                 05 Genus †Chilenosuchus Casamiquela, 1980
                 06 Genus †Desmatosuchus Case, 1920
                 07 Genus †Dyoplax Fraas, 1867
                 08 Genus †Ebrachosaurus Kuhn, 1936, nom. dub. see Genus Stagonolepis Agassiz, 1845
                 09 Genus †Fukangolepis Yang, 1978, nom. dub.
                 10 Genus †Longosuchus Hunt & Lucas, 1990
                 11 Genus †Neoaetosauroides Bonaparte, 1969
                 12 Genus †Paratypothorax Long & Ballew, 1985
                 13 Genus †Stagonolepis Agassiz, 1845
                 14 Genus †Stegomus Marsh, 1896
                 15 Genus †Typothorax Cope, 1875